Juan Antonio Lavalleja

Juan Antonio Lavalleja (24 June 1784-22 October 1853) was President of Uruguay from 25 September to 22 October 1853, succeeding Fructuoso Rivera and preceding Venancio Flores.

Biography
Juan Antonio Lavalleja was born in Minas, Uruguay on 24 June 1784, and he became one of the main leaders of the Uruguayan independence movement against Brazil, serving as Governor from 19 September 1825 to 5 July 1826 and as Provisional Captain General from 17 April 1830 to 24 October 1830. During his latter term, he oversaw the ratification of the Constitution of 1830, which led to Fructuoso Rivera becoming the first President of Uruguay on 6 November 1830. He distinguished himself as a skilled but reactionary general who fought in the Uruguayan Civil War for much of the 19th century, and he briefly served as President following Rivera's death in 1853, only to himself die in office after a month as President.